Pen



9, 1932- A. F. SZPITZGLASS 1,870,266

' PEN Filed Oct. 13, 1928 0119 1'51 Li [a 5.

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Patented Aug. 9, 1932 UNITED STATES PATENT. OFFICE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS PEN Application filed October 13, 1928. Serial No. 312,225.

This invention pertains to markers, and more particularly to capillary pens of the gauge or graph tracer type.

There are many capillary pens on the market for the use of graph, pantagraph and metering devices, the best known of which comprises essentially a pen holder, an ink or marking fluid container welded or otherwise secured to said pen holder, a removable segregating element in said container, and the capillary tube or marker. The difiiculty with these devices is that the parts are not conveniently replaceable and should the marker tube become damaged, the container and holder assembly must be removed and replaced. Not only that, but in continued use, the individual segregating element becomes frozen in the container and there is danger that in the removal of such element the whole pen may become damaged. It will be appreciated that the danger of damage to such an implement is enhanced for the reason that the whole assembly must necessarily be of light construction, parts being very small and readily distorted.

It is therefore an object of this invention to provide a marker having a plurality of chambers in an assembly embodying a minimum of parts.

Another object is to provide a capillary pen capable of operation without pressure.

Still another object is to provide a capillary pen employing the holder as reservoir separating means.

A further object is to provide a capillary pen, the construction of which utilizes a minimum of welded or secured parts, permits disassembly or replacement of the parts, and eliminates fragile segregating elements.

A still further object is-to provide a simple, effective capillary pen of sturdy construction, and one which fulfills all requirements of service and manufacture.

With these and various other objects in view, the invention consists of certain novel features of construction and operation as will be more fully described and particularly pointed out in the specification, drawing and claims appended hereto.

In the drawing, wherein like reference characters are used to designate like parts Figure 1 is a perspective elevation of the capillary pen embodying the invention;

Figure '2' is an enlarged sectional perspective illustrating the relation of the parts, the pen holder and container being in assembled position; and

Figure 3 is an enlarged perspective elevation similar to Figure 2, showing the parts in disassembled position.

The pen illustrated is particularly adapted for use on metering instruments, as illustrated in my copending application serial No. 381,468 filed Jan. 10, 1929, and consists essentially of a marking fluid container provided with a pen or marking member 11, said container being removably supported by the holder 12, shown provided at its top with a yoke or bifurcated member 18 pivoted or otherwise loosely secured to a fastening collar or bushing 14.

The container 10 may be of any convenient size and material, such as aluminum, and may be provided at its top or open end with a reentrant portion closed at its bottom 16 and integral with the'wall of the container 10. At a point removed from the bottom and preferably adjacent the reentrant portion 15, there is provided a tube 17 in communication with and preferably welded to the container as at 18. To the outer portion of said tube 17 there is provided another tube 19 secured to said first named tube and in communication therewith and with the container, the tubes being preferably of nickle silver, of thin wall construction, the outer or marking tube 19 being of very small bore (preferably .006 inches d., though this. will vary according to the use of the pen).

The holder 12 is illustrated as of flanged construction, being enlarged or shouldered as at 20 so that the depending portions 21 may be of such length that when the holder is associated with the container, the bottom of said portions 21 will clear the bottom of the container. The angle formed by the portions 21 is complementary to the angle formed by the reentrant portion 15 in the container so that the upper portions of said portions 21 will lie along and contact with the side por- ALBERT F. SPITZGLASS, OF CHICAGO, ILLINOIS, ASSIGNOR TO REPUBLIC FLOW METERS tions of the reentrant portion 15 so that a chamber 22 is formed in communication with the tube 17, said chamber being preferably open at the top adjacent the reentrant portion, closed at the sides by contact between the portions 21 and the side of the container, and open at the base, providing communication between the chamber 22 and the remaining portion of the container or chamber 23. The reentrant portion performs another function which is that of a guiding and retaining member for positioning the holder with respect to the reservoir and thereafter maintaining the holder and reservoir in relative fixed positions. The holder may be provided with the resilient depending finger portion 24 of suitable shape and disposition so that when the holder is inserted into the container, finger 24 will contact with the side wall of the container, maintaining the container and holder in relative fixed positions.

In the operation of this pen, the container may be filled before assembled with the holder, in which case it is only necessary to insert members 21 into the container in their proper relation, or it may be possible to fill the container when the device is assembled, the holder 12 acting as a guide for the insertion of the marking agent. After the device is filled and assembled, the marking agent will flow from chamber 23 into chamber 22 and pass outward through tubes 17 and 19 when the end of tube 19 contacts with and is moved along any indicating graph.

It will be seen that with the construction illustrated and described, a very simple yet effective form of device is presented, and it is to be understood that I do not wish to be limited by the exact embodiment of the device shown, which is merely by way of illustration and not limitation, as various and other forms of the device will of course be apparent to those skilled in'the art.

I claim: I

1. In a capillary marker, the combination of a marking fluid reservoir, a cooperating marking point, and a holder removably insertable into said reservoir for forming therewith a feed chamber adjacent to said point for supplying marking fluid to said point.

2. In a capillary marker, the combination of a marking fluid reservoir, a cooperating marking point including a tube communicating with said reservoir, and a holder removably insertable into said reservoir for dividing said reservoir into a storage chamber and a feed chamber, the latter chamber communieating with. said marking tube for supplying marking fluid thereto.

3'. In a capillary marker, the combination of a marking fluid reservoir, a cooperating markin point, and a channeled holder removably insertable into said reservoir, said channeled portion forming with sand reservoir a feed chamber for supplying marking fluid to said point.

4. In a capillary marker, the combination of a marking fluid reservoir, a cooperating marking point including a tube communicating with said reservoir, and a channeled holder removably insertable into said reservoir for dividing said reservoir into a plurality of communicating storage and feed chambers, the latter chamber supplying marking fluid to said tube.

. 5. In a capillary marker, the combination of a marking fluid reservoir, a cooperating marking ooint, and a removable holder insertable into said reservoir for dividing said reservoir into a plurality of chambers, one of said chambers having a re-entrant portion adjacent the top thereof.

6. In a capillary marker, the combination of a marking fluid reservoir, a cooperating marking point including a tube communicating with said reservoir, and a holder for said reservoir dividing said reservoir into a plurality of sections, one of said sections being closed adjacent the top thereof.

7. In a capillary marker, the combination of a marking fluid reservoir, a cooperating marking point including a tube communicating with said reservoir, and a removable holder insertable into said reservoir for dividing said reservoir into a plurality of chambers, the chamber adjacent said tube being closed at the top thereof.

8. In a device of the character described, the combination of a marking agent contain er forming a reservoir, a removable holder insertable into said container to divide said container into a plurality of communicating chambers, means between said holder and container for maintaining the container and holder in fixed relative posit-ions, andamarker communicating with one of said chambers.

9. Ina device of the character described, the combination of a marking agent container forming a reservoir, a removable holder insertable into said container to divide said container into a plurality of communicating chambers, said holder having container contacting portions forming positioning stops, resilient means on said holder for contacting said container for maintaining the container and holder in fixed relative positions, and a capillary marker communicating with one of said chambers at a point substantially above the base of said container.

10. In a device of the character described, the combination of a marking agent container forming a reservoir, a removable holder insertable into said container to divide said container into a plurality of communicating chambers, said holder having container contacting portions forming positioning stops and chamber forming portions, resilient means on said holder for contacting said container for maintaining the container and holder in fixed relative positions, and a capillary marker communicating with one of said chambers at a point substantially above the base of said container.

11. In a device of the character described, the combination of a marking agent container forming a reservoir, a removable holder insertable into said container to divide said container into a plurality of communicating chambers, said holder having flanged chamber forming portions, resilient means on said holder for contacting said container for maintaining the container and holder in fixed relative positions, and a capillary marker communicating with one of said chambers.

12. In a device of the character described, the combination of a marking agent container forming a reservoir, said container having a reentrant portion adjacent the top thereof, a removable holder insertable into said container to divide said container into a plurality of communicating chambers, said holder having flanged chamber forming portions cooperating with the walls of said container and said reentrant portion to form one substantially closed end chamber, container contacting positioning stops provided on said holder, resilient means on said holder for contacting said container for maintaining the container and holder in fixed relative positions, and a capillary marker communicating with one of said chambers at a point substantially above the base of said container.

13. In a device of the character described, the combination of a marking agent container forming a reservoir, said container having a reentrant portion adjacent the top thereof, a removable holder insertable into said container to divide said container into a plurality of communicating chambers, said holder having flanged chamber forming portions cooperating with the walls of said container and said reentrant portion to form an end chamber, container contacting positioning stops provided on said holder, resilient means on said holder for contacting said container for maintaining the container and holder in I fixed relative positions, and a capillary marker located below said reentrant portion and above the bottom of said holder in operative position and in communication with the adj acent chamber of said container.

14. In a marker, the combination of a marking fluid reservoir, a marking point associated therewith for making intelligible indicatory characters, a holder for directing said point, said holder being insertable into said reservoir for forming a capillary chamber adjacent said point for supplying marking fluid to said point.

Signed at Chicago, Illinois, this tenth day of October, 1928.

ALBERT F. SPITZGLASS.

CERTIFICATE OF CORRECTION.

Patent No. 1,870, 266. August 9, 1932.

ALBERT F. SPITZGLASS.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, lines 89 and 90, claim 6 and-line 97, claim 7, strike out the words "being closed" and insert instead having a re-entrant portion; and that the said Letters Patent should be read with these correction therein that the same may conform to the record of the case in the Patent Office.

S gned and sealed this 22nd day of November, A. D. 1932.

M; J; Moore,

(Seal) Acting Commissioner of Patents.

CERTIFICATE OF CGRRECTION.

Patent No 1,870, 266. August 9, 1932.

ALBERT F. SPITZGLASS.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, lines 89 and 90, claim 6, and line 97, claim 7, strike out the words "being closed" and insert instead having a re-entrant portion; and that the said Letters Patent should be read with these correction therein that the same may conform to the record of the case in the Patent Office.

S gned and sealed this 22nd day of November, A. D 1932.

M. J; Moore, (Seal) Acting Commissioner of Patents. 

